Fluid heater



Aug. 26, 1930.. D. s. JAcoBuS 1,774,142

FLUID HEATER Original Filed April l0, 1925 3 Sheets-Sheet l 'TIN nld o INVENToR. gbmw am l. f- Mx Aug. 26, 1930. D. s. JACQBUS FLUID HEATER l original Filed April 1o, 1925 3 Sheets-she'et 2 Aug. 26, 1930. D. s. JAcoBUs FLUID HEATER Original Filed April 10, 1925 5 Sheets-Sheet 3 IN VEN TOR.

l ATTORNEYS.

Patentedy Aug. 26,y

DAVID S. JAcORUS, OE JERSEY CITY, NEW JERSEY, ASsIeEOR rro THE. EABcOoKa WiL- ooX COMPANY, oERAYONNE-NEW JERSEY, A CORPORATION OE REW JERSEY 1 f YFLUIDv HEATER Application ined Aprii 1o, i925, serial No. 22,111. Renewed January 22,' 119,30.

My invention more particularly relates to a fluid heater wherein provision is made for cleaning' the tubes in such a way that the` Walls of the headers to which the tubes are connected are of maximum strength and adapted to withstand high pressures.v J

My invention will best be understood byVv reference to the accompanying drawings 'in which I have illustrated one embodiment of my invention and in which Fig. 1 is an end elevation of the heaterthe left-hand portion of this figure Y being an'l elevation Of the front part i of the heater and the right-hand portion ofk the ligure being a partial View of theheaders atthe rear endV of the heater., Vl? ig. 2 is a side view thereof and i Fig. 3 is a section taken'alongthe liney 3,--3

of Fig. 2, looking in thedirectionoffthe LITOWS. A i

[Like lreference characters Vindicate like parts throughout the drawings.

Referring tothe drawings, y10 and 11y arev supporting standards for the fluid heater,

two standards 10 at one end preferably being provided and connected bya cross bar12, the supporting standards 11 at the opposite end of the fluid heater being connected` by a f cross bar 13.

The fluid heater embodying my invention'y comprises a plurality of headers 14, preferl ably arranged in two rows 15a`nd`16, the headers ofeach rowpreferably being arranged in parallel relation,and in the form illustrated, the headers are horizontaland arrangedV one above the other, Ythe headers of one row being staggered with reference-toV those of the other'row. The lowermost head'- er 141 of the row 15 is supported on the standards 10, and adjacent headers are preferably spaced apart, as at k17' a sufficient distance to I permit of the removal and insertion of the tubes through these spaces. Suitable blocks 18 areinterposed between the header 141V and the next upper header/,142, supporting blocks similarlyv being interposed between successive headers. Similarly, the lowerrnost header 143 of the row ofheaders 16 is supported on the standards v11v and the remaining headers are spaced and supported similarly to the headersofthe row 15. .5,

' Vtive rows oftube openings in the headers.

19 and 20 of tube openings which are preferablyequally spaced apart, and preferably arranged iii staggered relation as illustrated in Fig. 1, to formi groups'21,211 and 212, etc., as best 'illustrated in Fig'.A 1, each group being Vvin the form'shownopposite two tube openings. VEach of the'headers-141 and 144 are v provided with a single row only of tube openings. Tubes 22 arranged in rows, and preferably slightly upwardlyinclinech as illustrated in Fig; 2,A are expanded at their ends into thel tube openings of theheaders, the Y rows offtubes transversely ofthe fluid heater' being connected attheirends'to the respec-J Water or other fluid enterstheflowermost heater/141 of the row 15 through theinlet,y

23 yand is distributed therein to the various tubes ofthe lowermost row through which it flows to thel lowerinost headers 143 of the row 16, and back and forth through the successive rows of tubes and headers to the outlet header 144, fiom which it passes through the outlety 24, and when the fluid heater is usedv as-aneconomizer, the water flows from the outlet to the steam and water drum of the boiler. Y

My invention makes provision for cleaning the tubes of the fluid heater and, at the l same time, forming the headers of the economizer ofmaximum strength. j y By my invention, part ofthe tubes, preferablyone-half thereof, are cleaned from one.end.ofthe-heater,v while the remaining tubes are cleaned from'the opposite end thereof, thereby requiring a vminimum4 number ofhandholes in the headers and preserving j maximum strength therein. In the formv shown, suf'cient handholes only `are provid- Y ed in each header to afford access to'alternate groups of tubeopenings, sothat one;

halfl ofthe tubes arefcleaned fromL oneend ofthe fluid heater and the remaining tubes are cleaned` from the opposite end'tlie'r'e'of. i Referring to Fig.1, it 'willjbe evident thaty the tubes221 and 222 :are'aecessible for cleaning through the handhole 25 and the tubes 223 and 224 are accessible through the handhole 251 of the header 145 of the row 16. Tubes of alternate groups, on the otherhand, are accessible for cleaning through handholes of the headers at the opposite end of the kfluid heater. For example, the tubes 225 and 226 are accessible for cleaning through handholes in the headers at the opposite end ofthe iiuid heater, as indicated in dotted lines in Fig.l l, as are the tubes 227 and 228. The handholes are closed by suitable removable handhole covers as shown in Fig. 2 and one of which is shown in Fig.

By providing handhole openings opposite alternate groups of tube openings only, it will be evident that the header is very niuch stronger than would be the case if suliicient handholes were provided at one eind of the fluid heater lfor affording access to all of the tubes for cleaning purposes. is particularly'applicable to an economiser for a. steam boiler' of the high pressure. type, and is particularly useful in an economizer of this type wherein the -headersV are spaced sufliciently to permit of passage of the tubes therebetween, vfor itis then particularly important that the header Vwalls should 1nave the maximum' strength. y

It will, of course, be understoodthat heating gases are caused to flow across the tubes of the fluid heater, and when the fluid heater is used as an economizer, it will preferably be arranged in a flue for the gases similarly to the econoinizer illustrated in my Patent No. 1,329,767, which issued February 3, 1920, the water in that case preferably flowing through the economizer in a direction generally oppositeto the direction or flow of gases across the tubes.

I claim:

l. A fluid heater comprising a plurality ot headers at each end of the heater, at least some of which are provided with a plurality of rows oftube openings, the tube openings of the rows forming groups, tubes connecting the headers and entering saidV openings, each header being provided with handhol opposite alternate groups of tube openii gs, removable handhole covers being provided for said handholes.

2. A fluid heater comprising a plurality of headers at each end of the heater, at least some of which are provided with a plurality of rows of equally spaced tubev openin'O's arranged staggered relation, the tube openings of the rows forming groups, tubes con necting the headers and. entering said open,- ings, each header being provided with handholes opposite alternate groupsof tube openings, removable handholecovers being provided for said handholes.v

. 8. A fluid heater comprising a plurality of headers at each end of the heater, the headersV at'onefend being staggered `with respect to My invention those at the other end, at least some of which are provided with a plurality of rows of tube openings, the tube openings of the rows forming groups, inclined tubes connecting the headers and entering said openings, the tubes entering the respective rows of openings being connected to adjacent headers at the other endof vthe heater, each header being provided with equally spaced handholes opposite alternate groups of tube openings, removable handhole covers being provided for said handholes.

4. A fluid heater comprising a plurality of headers at each end of the heater, the headers at one end of the heater bein staggered with reference to those at the other end, at least some of the headers being provided with two rows of tube openings extending longitudinally of the header, the tube openings or the two rows forming groups, inclined tubes connecting the headers and entering said tube openings, each header being provided with handholes opposite alternate groups of tube openings, removable handhole covers being provided yfor said handholes.

5. ln a fluid heater comprising headers at least some of which are provided with 'two rows of tube` holes extending longitudnallyv thereof, tubes connected at their ends te said headers and entering said tube holes, the holes of both rows being equally spaced so thatthe tubes of one row form groups with those of the other, the headers being provided with handholes opposite alternate groups only of tube holes, removable handhole covers being provided for said handholes.

6'. A fluid heater comprising oppositely located headers arranged in rows, tubes connected at their ends to said headers, both rows'of headers being provided with handholes, the handholes of one row or headers serving one-half only of the vtu for cleaningy pi'irposes and the handholes ot' the other row of headers serving the other hell or the tubes for cleaning purposes, ren'iovable hand hole covers being provided for said handholes.

DAVID S. JACQBUS. 

